chore(package): update to Protractor 4.x
chore(package): update to Protractor 4.x

Fixes #377

Closes #378

gkalpak/angular-phonecat,blankymaree/angularjs-training,barrymay/angular-phonecat-ts-ng2-webpack,pe-1-er/angularJSTutorial,XiaolinSong5/contact-form,ASerputko/angular-phonecat,pe-1-er/angularJSTutorial,mohanprasaths/AngularTraining,LIHTU/star_ticker_app,barrymay/angular-phonecat-ts-ng2-webpack,XiaolinSong5/contact-form,LIHTU/star_ticker_app,barrymay/angular-phonecat-ts-ng2-webpack,pe-1-er/angularJSTutorial,lelehehe/phonecat-upgrade,ASerputko/angular-phonecat,lelehehe/phonecat-upgrade,mohanprasaths/AngularTraining,angular/angular-phonecat,lelehehe/phonecat-upgrade,gkalpak/angular-phonecat,blankymaree/angularjs-training,XiaolinSong5/contact-form,mohanprasaths/AngularTraining,ASerputko/angular-phonecat,barrymay/angular-phonecat-ts-ng2-webpack,gkalpak/angular-phonecat,angular/angular-phonecat,lelehehe/phonecat-upgrade,blankymaree/angularjs-training,LIHTU/star_ticker_app,angular/angular-phonecat